1. Yu. I. Bilushchak and O. Yu. Chernukha, "Modeling of the processes of heterodiffusion in two ways for the cascade decay of admixture particles. I. Cascade-type initial-boundary-value problems," Mat. Met. Fiz.-Mekh. Polya, 61, No. 3, 122-132 (2018)
2. English Translation: J. Math. Sci, 254, No. 1, 142-155 (2021).
3. A. N. Klimov, Nuclear Physics and Nuclear Reactors [in Russian], Ènergoatomizdat, Moscow (2002).
4. A. Ya. Kupryazhkin, P. V. Volobuev, and P. E. Suetin, “Mechanisms of diffusion of neon in potassium chloride,” Zh. Tekh. Fiz., 45, No. 2, 431–432 (1975).
5. V. M. Prokhorov, Migration of Radioactive Pollutants in Soils [in Russian], Ènergoizdat, Moscow (1981).